ISOBUTYLENE POLYMER HAVING UNSATURATED GROUP AND PREPARATION THEREOF

摘要

An isobutylene polymer having an unsaturated group and comprising more than one unit per molecule on the average of the formula: wherein R1, R2 and R3 are the same or different and each a hydrogen atom or a C1-C8 alkyl group, R' and R" are the same or different and each a hydrogen atom, a methyl group or an ethyl group, and Q is a C1-C30 divalent organic group, which provides a cured material having improved weather resistance.